/**
 * ImportPanel.js zarafa contact to vcf im/exporter
 *
 * Author: Christoph Haas <christoph.h@sprinternet.at>
 * Copyright (C) 2012-2016 Christoph Haas
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/**
 * ImportPanel
 *
 * The main Panel of the contactimporter plugin.
 */
Ext.namespace("Zarafa.plugins.contactimporter.dialogs");

/**
 * @class Zarafa.plugins.contactimporter.dialogs.ImportPanel
 * @extends Ext.Panel
 */
Zarafa.plugins.contactimporter.dialogs.ImportPanel = Ext.extend(Ext.Panel, {

	/* path to vcf file on server... */
	vcffile: null,

	/* The store for the selection grid */
	store  : null,

	/* selected folder */
	folder : null,

	/**
	 * @constructor
	 * @param {object} config
	 */
	constructor: function (config) {
		config = config || {};
		var self = this;

		if (!Ext.isEmpty(config.filename)) {
			this.vcffile = config.filename;
		}

		if (!Ext.isEmpty(config.folder)) {
			this.folder = config.folder;
		}

		// create the data store
		// we only display the firstname, lastname, homephone and primary email address in our grid
		this.store = new Ext.data.ArrayStore({
			fields: [
				{name: 'display_name'},
				{name: 'given_name'},
				{name: 'surname'},
				{name: 'company_name'},
				{name: 'record'}
			]
		});

		Ext.apply(config, {
			xtype    : 'contactimporter.importpanel',
			ref      : "importcontactpanel",
			layout   : {
				type : 'form',
				align: 'stretch'
			},
			anchor   : '100%',
			bodyStyle: 'background-color: inherit;',
			defaults : {
				border   : true,
				bodyStyle: 'background-color: inherit; padding: 3px 0px 3px 0px; border-style: none none solid none;'
			},
			items    : [
				this.createSelectBox(),
				this.initForm(),
				this.createGrid()
			],
			buttons  : [
				this.createSubmitAllButton(),
				this.createSubmitButton(),
				this.createCancelButton()
			],
			listeners: {
				afterrender: function (cmp) {
					this.loadMask = new Ext.LoadMask(this.getEl(), {msg: 'Loading...'});

					if (this.vcffile != null) { // if we have got the filename from an attachment
						this.parseContacts(this.vcffile);
					}
				},
				scope      : this
			}
		});

		Zarafa.plugins.contactimporter.dialogs.ImportPanel.superclass.constructor.call(this, config);
	},

	/**
	 * Init embedded form, this is the form that is
	 * posted and contains the attachments
	 * @private
	 */
	initForm: function () {
		return {
			xtype     : 'form',
			ref       : 'addContactFormPanel',
			layout    : 'column',
			fileUpload: true,
			autoWidth : true,
			autoHeight: true,
			border    : false,
			bodyStyle : 'padding: 5px;',
			defaults  : {
				anchor   : '95%',
				border   : false,
				bodyStyle: 'padding: 5px;'
			},
			items     : [this.createUploadField()]
		};
	},

	/**
	 * Get all contact folders.
	 * @param {boolean} asDropdownStore If true, a simple array store will be returned.
	 * @returns {*}
	 */
	getAllContactFolders: function (asDropdownStore) {
		asDropdownStore = Ext.isEmpty(asDropdownStore) ? false : asDropdownStore;

		var allFolders = [];

		var defaultContactFolder = container.getHierarchyStore().getDefaultFolder('contact');

		var inbox = container.getHierarchyStore().getDefaultStore();
		var pub = container.getHierarchyStore().getPublicStore();

		if (!Ext.isEmpty(inbox.subStores) && inbox.subStores.folders.totalLength > 0) {
			for (var i = 0; i < inbox.subStores.folders.totalLength; i++) {
				var folder = inbox.subStores.folders.getAt(i);
				if (!Ext.isEmpty(folder) && folder.get("container_class") == "IPF.Contact") {
					if (asDropdownStore) {
						allFolders.push([
							folder.get("entryid"),
							folder.get("display_name")
						]);
					} else {
						allFolders.push({
							display_name : folder.get("display_name"),
							entryid      : folder.get("entryid"),
							store_entryid: folder.get("store_entryid"),
							is_public    : false
						});
					}
				}
			}
		}

		if (!Ext.isEmpty(pub.subStores) && pub.subStores.folders.totalLength > 0) {
			for (var j = 0; j < pub.subStores.folders.totalLength; j++) {
				var folder = pub.subStores.folders.getAt(j);
				if (!Ext.isEmpty(folder) && folder.get("container_class") == "IPF.Contact") {
					if (asDropdownStore) {
						allFolders.push([
							folder.get("entryid"),
							folder.get("display_name") + " (Public)"
						]);
					} else {
						allFolders.push({
							display_name : folder.get("display_name"),
							entryid      : folder.get("entryid"),
							store_entryid: folder.get("store_entryid"),
							is_public    : true
						});
					}
				}
			}
		}

		if (asDropdownStore) {
			return allFolders.sort(this.dynamicSort(1));
		} else {
			return allFolders;
		}
	},

	/**
	 * Dynamic sort function, sorts by property name.
	 * @param {string|int} property
	 * @returns {Function}
	 */
	dynamicSort: function (property) {
		var sortOrder = 1;
		if (property[0] === "-") {
			sortOrder = -1;
			property = property.substr(1);
		}
		return function (a, b) {
			var result = (a[property].toLowerCase() < b[property].toLowerCase()) ? -1 : (a[property].toLowerCase() > b[property].toLowerCase()) ? 1 : 0;
			return result * sortOrder;
		}
	},

	/**
	 * Return a contact folder element by name.
	 * @param {string} name
	 * @returns {*}
	 */
	getContactFolderByName: function (name) {
		var folders = this.getAllContactFolders(false);

		for (var i = 0; i < folders.length; i++) {
			if (folders[i].display_name == name) {
				return folders[i];
			}
		}

		return container.getHierarchyStore().getDefaultFolder('contact');
	},

	/**
	 * Return a contact folder element by entryid.
	 * @param {string} entryid
	 * @returns {*}
	 */
	getContactFolderByEntryid: function (entryid) {
		var folders = this.getAllContactFolders(false);

		for (var i = 0; i < folders.length; i++) {
			if (folders[i].entryid == entryid) {
				return folders[i];
			}
		}

		return container.getHierarchyStore().getDefaultFolder('contact');
	},

	/**
	 * Reloads the data of the grid
	 * @private
	 */
	reloadGridStore: function (contactdata) {
		var parsedData = [];

		if (contactdata) {
			parsedData = new Array(contactdata.contacts.length);
			var i = 0;
			for (i = 0; i < contactdata.contacts.length; i++) {

				parsedData[i] = [
					contactdata.contacts[i]["display_name"],
					contactdata.contacts[i]["given_name"],
					contactdata.contacts[i]["surname"],
					contactdata.contacts[i]["company_name"],
					contactdata.contacts[i]
				];
			}
		} else {
			return null;
		}

		this.store.loadData(parsedData, false);
	},

	/**
	 * Init embedded form, this is the form that is
	 * posted and contains the attachments
	 * @private
	 */
	createGrid: function () {
		return {
			xtype      : 'grid',
			ref        : 'contactGrid',
			columnWidth: 1.0,
			store      : this.store,
			width      : '100%',
			height     : 300,
			title      : 'Select contacts to import',
			frame      : false,
			viewConfig : {
				forceFit: true
			},
			colModel   : new Ext.grid.ColumnModel({
				defaults: {
					width   : 300,
					sortable: true
				},
				columns : [
					{id: 'Displayname', header: 'Displayname', width: 350, sortable: true, dataIndex: 'display_name'},
					{header: 'Firstname', width: 200, sortable: true, dataIndex: 'given_name'},
					{header: 'Lastname', width: 200, sortable: true, dataIndex: 'surname'},
					{header: 'Company', sortable: true, dataIndex: 'company_name'}
				]
			}),
			sm         : new Ext.grid.RowSelectionModel({multiSelect: true})
		}
	},

	/**
	 * Generate the UI calendar select box.
	 * @returns {*}
	 */
	createSelectBox: function () {
		var myStore = this.getAllContactFolders(true);

		return {
			xtype         : "selectbox",
			ref           : 'addressbookSelector',
			editable      : false,
			name          : "choosen_addressbook",
			value         : Ext.isEmpty(this.folder) ? this.getContactFolderByName(container.getSettingsModel().get("zarafa/v1/plugins/contactimporter/default_addressbook")).entryid : this.folder,
			width         : 100,
			fieldLabel    : "Select folder",
			store         : myStore,
			mode          : 'local',
			labelSeperator: ":",
			border        : false,
			anchor        : "100%",
			scope         : this,
			hidden        : Ext.isEmpty(this.folder) ? false : true,
			allowBlank    : false
		}
	},

	/**
	 * Generate the UI upload field.
	 * @returns {*}
	 */
	createUploadField: function () {
		return {
			xtype      : "fileuploadfield",
			ref        : 'contactfileuploadfield',
			columnWidth: 1.0,
			id         : 'form-file',
			name       : 'vcfdata',
			emptyText  : 'Select an .vcf addressbook',
			border     : false,
			anchor     : "100%",
			height     : "30",
			scope      : this,
			allowBlank : false,
			listeners  : {
				'fileselected': this.onFileSelected,
				scope         : this
			}
		}
	},

	/**
	 * Generate the UI submit button.
	 * @returns {*}
	 */
	createSubmitButton: function () {
		return {
			xtype     : "button",
			ref       : "../submitButton",
			disabled  : true,
			width     : 100,
			border    : false,
			text      : _("Import"),
			anchor    : "100%",
			handler   : this.importCheckedContacts,
			scope     : this,
			allowBlank: false
		}
	},

	/**
	 * Generate the UI submit all button.
	 * @returns {*}
	 */
	createSubmitAllButton: function () {
		return {
			xtype     : "button",
			ref       : "../submitAllButton",
			disabled  : true,
			width     : 100,
			border    : false,
			text      : _("Import All"),
			anchor    : "100%",
			handler   : this.importAllContacts,
			scope     : this,
			allowBlank: false
		}
	},

	/**
	 * Generate the UI cancel button.
	 * @returns {*}
	 */
	createCancelButton: function () {
		return {
			xtype     : "button",
			width     : 100,
			border    : false,
			text      : _("Cancel"),
			anchor    : "100%",
			handler   : this.close,
			scope     : this,
			allowBlank: false
		}
	},

	/**
	 * This is called when a file has been seleceted in the file dialog
	 * in the {@link Ext.ux.form.FileUploadField} and the dialog is closed
	 * @param {Ext.ux.form.FileUploadField} uploadField being added a file to
	 */
	onFileSelected: function (uploadField) {
		var form = this.addContactFormPanel.getForm();

		if (form.isValid()) {
			form.submit({
				waitMsg: 'Uploading and parsing contacts...',
				url    : 'plugins/contactimporter/php/upload.php',
				failure: function (file, action) {
					this.submitButton.disable();
					this.submitAllButton.disable();
					Zarafa.common.dialogs.MessageBox.show({
						title  : _('Error'),
						msg    : _(action.result.error),
						icon   : Zarafa.common.dialogs.MessageBox.ERROR,
						buttons: Zarafa.common.dialogs.MessageBox.OK
					});
				},
				success: function (file, action) {
					uploadField.reset();
					this.vcffile = action.result.vcf_file;

					this.parseContacts(this.vcffile);
				},
				scope  : this
			});
		}
	},

	/**
	 * Start request to server to parse the given vCard file.
	 * @param {string} vcfPath
	 */
	parseContacts: function (vcfPath) {
		this.loadMask.show();

		// call export function here!
		var responseHandler = new Zarafa.plugins.contactimporter.data.ResponseHandler({
			successCallback: this.handleParsingResult.createDelegate(this)
		});

		container.getRequest().singleRequest(
			'contactmodule',
			'load',
			{
				vcf_filepath: vcfPath
			},
			responseHandler
		);
	},

	/**
	 * Callback for the parsing request.
	 * @param {Object} response
	 */
	handleParsingResult: function (response) {
		this.loadMask.hide();

		if (response["status"] == true) {
			this.submitButton.enable();
			this.submitAllButton.enable();

			this.reloadGridStore(response.parsed);
		} else {
			this.submitButton.disable();
			this.submitAllButton.disable();
			Zarafa.common.dialogs.MessageBox.show({
				title  : _('Parser Error'),
				msg    : _(response["message"]),
				icon   : Zarafa.common.dialogs.MessageBox.ERROR,
				buttons: Zarafa.common.dialogs.MessageBox.OK
			});
		}
	},

	/**
	 * Close the UI dialog.
	 */
	close: function () {
		this.addContactFormPanel.getForm().reset();
		this.dialog.close()
	},

	/**
	 * Create a request to import all selected contacts.
	 */
	importCheckedContacts: function () {
		var newRecords = this.contactGrid.selModel.getSelections();
		this.importContacts(newRecords);
	},

	/**
	 * Check all contacts and import them.
	 */
	importAllContacts: function () {
		//receive Records from grid rows
		this.contactGrid.selModel.selectAll();  // select all entries
		var newRecords = this.contactGrid.selModel.getSelections();
		this.importContacts(newRecords);
	},

	/**
	 * This function stores all given events to the contact store
	 * @param {array} contacts
	 */
	importContacts: function (contacts) {
		//receive existing contact store
		var folderValue = this.addressbookSelector.getValue();

		if (folderValue == undefined) { // no addressbook choosen
			Zarafa.common.dialogs.MessageBox.show({
				title  : _('Error'),
				msg    : _('You have to choose an addressbook!'),
				icon   : Zarafa.common.dialogs.MessageBox.ERROR,
				buttons: Zarafa.common.dialogs.MessageBox.OK
			});
		} else {
			if (this.contactGrid.selModel.getCount() < 1) {
				Zarafa.common.dialogs.MessageBox.show({
					title  : _('Error'),
					msg    : _('You have to choose at least one contact to import!'),
					icon   : Zarafa.common.dialogs.MessageBox.ERROR,
					buttons: Zarafa.common.dialogs.MessageBox.OK
				});
			} else {
				var contactFolder = this.getContactFolderByEntryid(folderValue);

				this.loadMask.show();
				var uids = [];

				//receive Records from grid rows
				Ext.each(contacts, function (newRecord) {
					uids.push(newRecord.data.record.internal_fields.contact_uid);
				}, this);

				var responseHandler = new Zarafa.plugins.contactimporter.data.ResponseHandler({
					successCallback: this.importContactsDone.createDelegate(this)
				});

				container.getRequest().singleRequest(
					'contactmodule',
					'import',
					{
						storeid     : contactFolder.store_entryid,
						folderid    : contactFolder.entryid,
						uids        : uids,
						vcf_filepath: this.vcffile
					},
					responseHandler
				);
			}
		}
	},

	/**
	 * Callback for the import request.
	 * @param {Object} response
	 */
	importContactsDone: function (response) {
		this.loadMask.hide();
		this.dialog.close();
		if (response.status == true) {
			container.getNotifier().notify('info', 'Imported', 'Imported ' + response.count + ' contacts. Please reload your addressbook!');
		} else {
			Zarafa.common.dialogs.MessageBox.show({
				title  : _('Error'),
				msg    : _('Import failed: ') + response.message,
				icon   : Zarafa.common.dialogs.MessageBox.ERROR,
				buttons: Zarafa.common.dialogs.MessageBox.OK
			});
		}
	}
});

Ext.reg('contactimporter.importcontactpanel', Zarafa.plugins.contactimporter.dialogs.ImportPanel);